Does anyone know a reasonably priced, low hassle place to play tennis in Tokyo? I realise a lot of the wards have facilities and there is Ariake Tennis no Mori in Odaiba - which seems to have decent prices - but they all seem to require booking about 2 months in advance.http://www.tptc.co.jp/park/02_03/court/03

Now, here's a bit of an odd question but do you want to play against anyone or just on your own? Reason I mention is that if you are the "hitting against a wall sort" there's this curved wall that appears to be free (well, at least from what I've seen) that seems to attract tennis fans near Harajuku.